2516121274 has 8 divisors (see below), whose sum is σ = 3774405780. Its totient is φ = 1257986016.

The previous prime is 2516121259. The next prime is 2516121281. The reversal of 2516121274 is 4721216152.

It can be written as a sum of positive squares in 2 ways, for example, as 2398550625 + 117570649 = 48975^2 + 10843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27022 + ... + 75910.

Almost surely, 2^2516121274 is an apocalyptic number.

2516121274 is a deficient number, since it is larger than the sum of its proper divisors (1258284506).

2516121274 is a wasteful number, since it uses less digits than its factorization.

2516121274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74624.

The product of its digits is 6720, while the sum is 31.

The square root of 2516121274 is about 50160.9536791317. The cubic root of 2516121274 is about 1360.1198845443.

The spelling of 2516121274 in words is "two billion, five hundred sixteen million, one hundred twenty-one thousand, two hundred seventy-four".